{"provider_url":"https://hatena.blog","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Firof.hateblo.jp%2Fentry%2F20111031%2Fp2\" title=\"TreeSet\u306bnull\u3092add\u3059\u308b\u8a71 - \u65e5\u3005\u5e38\u3005\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","image_url":null,"url":"https://irof.hateblo.jp/entry/20111031/p2","version":"1.0","title":"TreeSet\u306bnull\u3092add\u3059\u308b\u8a71","width":"100%","author_name":"irof","author_url":"https://blog.hatena.ne.jp/irof/","blog_url":"https://irof.hateblo.jp/","published":"2011-10-31 00:00:00","type":"rich","blog_title":"\u65e5\u3005\u5e38\u3005","categories":["Java","Java\u5165\u9580+\u03b1"],"description":"Java \u3067 TreeSet \u306b null \u3092 add \u3059\u308b\u3068 NullPointerException \u306b\u306a\u308a\u307e\u3059\u3002*1 Airof:~ irof$ groovysh Picked up _JAVA_OPTIONS: -Dfile.encoding=UTF-8 Groovy Shell (1.8.2, JVM: 1.6.0_26) Type 'help' or '\\h' for help. ------------------------------------------------------------------------------------------------------\u2026"}